Only 27% (n = 138) carried fast-acting carbohydrates, and 42% (n = 210) felt safe to drive 'as soon as I feel better' while 32% (n = 163) would 'wait 45 minutes and recheck their glucose levels'.<h4>Conclusions</h4>Potentially unsafe driving behaviors are common among adults with insulin-treated T2D. The gene discussed is INS; the disease is type 2 diabetes mellitus.